Crown Graphic 4x5 Flash Question

[Autocord6x6]

I have a Graflex Crown Graphic with a Supermatic 'X' Shutter.

I would like to try using flash with the camera, but even after looking at the manual/online, I am not sure how to do this - I'm new to large format.

The manual says these shutters are synchronised only for firing Class X high speed electronic flash units.

My issue is, how then do I go about connecting a flash to the camera?
Do I just need a cord that connects from the synchroniser contact posts to the camera?

Hope you can help!